Furnace-tiling.



No. 65l,467. Patented lune I2, |900.

E. D. MEIER.

FURNACE TILING.

(Application tiled Sept. 25, 1899.)

(No Model.) 2 Sheets-Sheet I.

No. 65l,467. atented lune t2, |900.

E. D. MEIER.

FURNACE TILING.

(Applicatinledept. 25, 1899.)

(No Model.) 2 Sheets-Sheet 2.

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Zza, fe?? INrrian l STATES VPATENT Orrics.

EDWARD DANIEL MEIER, OF ST. LOUIS, MISSOURI.

FU RNACE-TILING.

SPECIFICATION forming part of Letters Patent N o. 651,467, dated J une 12, 1900.

Application filed September 25,1899. Serial No. 731,641. (No model.)

T0 all whom t may coli/cern,.-

Be it known that LEDWARD DANIEL MEIER, a citizen oi' the United States, residing at the city of St. Louis, in the State of Missouri, have invented a certain new and useful Improve ment in Furnace-Tiling, ofwhich the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying draw ings, forming a part of this specification, in which- Figure l is a top plan view of a portion of two tubes, showing two ot' rny improved tiles in position thereon, one of said tiles being shown in horizontal position, and a third in an entering position. Fig. 2 is a cross-sectional v iew through the tubes, showing one l serves to retain the heated air therein and of the tiles in position in full lines and in dotted lines a tile between the tubes in its entering position. Fig. 3 is a similar view showing a solid tile or one not provided with central openings. Figs. 4, 5, and 6 are longitudinal sectional views of several Iforms of tiles, showing how the same interlock with each other, so that each tile may be supported A A and in a subhorizontal water-tube boiler are f arranged to form straight series, the tubes of Ieach'series being staggered with relation to when broken in whole or in part by its neigh-v bor.

This invention relates to a new and usefu improvement in furnace-tiles designed particularly for use in connection with watertube boilers, wherein the tiles are arranged on the tubes in such manner as`to form diaphragms or curtain-walls for giving a direci phragms by lilling the spaces between said seriesof tubes-say at one end thereof-to tion to the escaping products of combustion, so that said products of combustion will traverse the tubes to the best advantage.

The objects of vthe invention are to provide tiling of the character described composed of separate pieces designed to be individually introduced or removed from their position between the tubes, so that the Water-tubes and the tiling supported thereby may expand and contract independently, and should one or more of said tiles in a longitudinal series be broken the other tiles of that series may be moved longitudinally of the tubes to lill up erate with two adjacent tubes, the thickness of said tile being less than the distance be-i tween said tubes, whereby said tile may be introduced edgewise between the tubes and turned substantially at right angles to its entering position to engage the tubes, and thus be supported in position by the` tubes.

Another feature of the invention consists in'rounding the edges of the tube-recesses, so that the tile is permitted to be turned into position to engage the tubes and when so turned will practically iill the entire space between the tubes. Another feature of the invention resides in the provision of an air-'space formed in the body of the tile, the air-spaces of a longitudinal series of tiles registering with each other to form an uninterrupted opening which also permits the introduction of a rod, which serves as a key to lock all of the tiles of a longitudinal series in position on the tubes, so that they cannot be rotated out of their designed position. f

I n the drawings, A represents a portion of two tubes, which are substantially parallel,

the tubes-of each series thereabove or theret below.

My improved form of tile is adapted to cooperate with one or more of such horizontal series of tubes to form a diaphragm or diaprevent the products of combustion from passing between the tubes at the place occupied by the tiling.

My improved tiling may be made of fireclay or asbestos-board, or a mixture of the two, or any suitable refractory material. The tiling consists of separate bricks or tiles B,

having a body portion whose thickness is somewhat less than the space between two tubes. The upper and lower faces of these tiles may be straight or curved, as show n in Figs. 2 and 3.

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as at b, in order that the tile may be introduced and turned in either direction to engage the tubes and when in position to fully occupy the space between two tubes. It is obvious, however, that instead of both corners ofthe semicircular opening being round diametricaliy-opposite corners of each recess could be round, leaving square shoulders at the remaining corners; but this would necessitate the introduction of the tile into position or removing it from position by turning it in one direction only. I prefer to form an opening b through the body portion of each tile for the purpose of lightening the same and also observing, as near as possible, a uniform cross-section through the tile at various points, so that when the tiles are made of fire-clay and baked in a kiln they will burn uniformly and not be distorted or warped out of position by reason of uneven distribution of material. This opening also serves as a chamber for containing heated air for preventing the tiles and their surrounded tubes from being chilled when the furnacedoor is open, as in the act of firing, and may be used for introducing and heating a current of air to complete or intensify the combustion of the gases.

As shown in Fig. 2, a rod C may be introduced through the alined openings of a series of tiles, so as to clamp them together against longitudinal and rotary displacement.

In placing a tile in position it is introduced from above or below into the space between two tubes and turned at right angles until its side recesses receive the tubes, after which it is slid longitudinally on the tubes to its designed position. Another tile is similarly introduced and slid longitudinally the tubes until its front or back face engages with its companion, the space between two tubes being built up to the desired length by introducing tiles separately and sliding them to their designed position until they form a compact line. The tiles are similarlyintroduced into the next space between two tubes, and so on, clear across the series of tubes, forming when in position a compact diaphragm for giving a definite direction to the products of combustion and also a protecting-covering for the tubes. 'lhe side edges of each tile above and below the tubes preferably terminate approximately at a vertical line drawn through the center of the tube; but it is obvious that these lateral projections from the body of the tile can be shortened, so that the side faces thereof will be located some distance to one side of the centers of the tubes, the projections being just long enough to firm] y support the tiles in position and cover the greater portion of the exposed lower surfaces of the tubes.

In Fig. 4 I have shown a tile in which the upper and lower portions are offset with relation to each other, forming shoulders d and e ou the front and back faces thereof, respectively. These shoulders on the different tiles cooperate with each other when the tiles are placed close together, all of the shoulders c resting upon the shoulders d, so that each tile supports and is supported by its neighbor. This is advantageous in cases where one of the tiles is broken or burnedv ofi. in part, said burned or broken tile being supported in position by its adjacent companion. There these shoulders are used, the rod C may be dispensed with.

In Fig. 5 I have shown a projection F formed on one face of each tile, which is designed to be received in a seat or corresponding depression G in the face of a companion tile, so that when said tiles are placed in p0- sition one supports the other by means of these projections. These projections may be in the form of bosses and circular depressions or transverse ribs and straight seats.

In Fig. 6 the tiles are shown bent as an entirety, the projecting face fitting into the depression in the next adjacent tile. In all forms shown the object generally is to support the broken portion of any tile by its neighbor, so that the cost of repairs is reduced to a minimum, the tiles, although broken or burned, lasting until a great number are destroyed.

I am aware that there are minor changes in the arrangement, construction, and. combination of several parts of my device which can be made and substituted for those herein shown and described without in the least departing from the nature and principle of my invention.

I'Iaving thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. The herein-described tile for boiler-furnaces comprising a body portion and a lateral projection on each of its two opposite ends for engagement with the furnace-tubes, the body portion being of such width and length relative to distance between the tubes that the tile can be introduced edgewise bctween the tubes and then turned to bring the projections into engagement with the tubes, substantially as described.

2. The herein-described tile for boiler-furnaces comprising a body portion having recesses in its opposite ends for receiving the furnace-tubes, the walls of said recesses being rounded and the Vtile being of such width relative to the distance between the furnacetubes that the tile can be introduced edgewise between the tubes and then turned to bring the walls of the recesses into engagement with the tubes, substantially as described.

3. The combination with two water-tubes, of a tile comprising a body portion formed with recesses in its side edges for receiving said tubes, the thickness of said body portion of the tile being less than the distance between said two tubes, whereby said tile may be introduced edgewise between two tubes and turned into engagement with the tubes; substantially as described.

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4. The combination with two tubes, of a tile comprising a body portion Whose thickness is less than the distance between said tubes, said body portion having recesses in its side edges to receive the tubes, the edges of said recesses being rounded; substantially as described.

5. The herein-described tile for boiler-furnaces comprising a body portion and a lateral projection on each of its two opposite ends for engagement with the furnace-tubes, the body portion being of such width and length relative to distance between the tubes that the tile can be introduced edgewise between the tubes and then turned to bring the projections into engagement with the tubes, said tile being formed with a hole through its body portion, substantially as described.

G. The combination with two tubes, of a series of tiles whose body portions are provided with alined openings, the side edges of said tiles being recessed to engage the tubes, and a rod C passing through the openings in the body portion of the tile; substantially as described.

7 The herein-described tile for boiler-furnaces comprising a body portion formed of projections and recesses on opposite faces respectively, so as to support, and be supported by, its companion; substantially as described.

8. The combination with two water-tubes, oty a tile comprising a body portion formed with lateral projections designed to coperate with the tubes to support the tile in position, and projections and recesses formed on and in opposite faces of the tile respectively, whereby said tile supports, and is supported by, its companions; substantially as described.

In testimony whereof I hereunto affix my signature, in the presence of two witnesses, this 9th day of September, 1899.

EDWARD DANIEL MEIER.

XVitnesses:

RUDOLF BUECKING, GEORGE RUGER. 

